Originally Posted by flatlander

If you mean yield/passenger, that isn't what mattters, it's RASK. A sparsely populated cabin of people paying high prices will not do, as that revenue across all the available seat-kilometers in the cabin will be too low.

BA RASK is currently somewhat declining, a couple of percent in the last results, as I recall. It is still quite good, but not heading in the right direction.

However, not too many people in the general traveller population may know about BA's often reasonably-priced upgrades in the low season, so I can see BA wanting to try some promotional activity - even if such may be at odds with a "calm, luxury" brand.